Dev tools · alternatives · 2026
24 alternatives to 30 Seconds of Knowledge
Don't let your engineering brain rot in the age of AI. 30 Seconds of Knowledge delivers one real code snippet on every new tab - read it, get it, stay sharp in 30 seconds.
30 Seconds of Knowledge is a browser extension that displays code snippets and programming concepts whenever a user opens a new tab. Designed for developers wanting to improve their skills, the tool lets users select… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 30 Seconds of Knowledge launched in 2019; newer entries below may have overtaken it.
- 1
Short code snippets for all your development needs
2020 · 30secondsofcode.org · its alternatives →
- 2
JS snippets that you can understand in 30 seconds or less.
2018 · github.com · its alternatives →
- 3
Web Design in 4 minutes▲1,624Learn the basics of web design in 4 minutes with this interactive tutorial.
2016 · jgthms.com · its alternatives →
- 4
Short C# code snippets for all your development needs
2020 · github.com · its alternatives →
- 5LP
2020 · nbasic.net · its alternatives →
- 6
learn programming basics
2021 · easylang.online · its alternatives →
- 7
Explain Code App▲170Make any code easy to understand, instantly
2022 · explaincode.app · its alternatives →
- 8
Instant time complexity, explanation, and documentation
2021 · marketplace.visualstudio.com · its alternatives →
- 9
Create code tutorials in seconds, powered by AI
2022 · app.explain.dev · its alternatives →
- 10
Coding Tips▲106Learn something new every time you open a new tab
2018 · chromewebstore.google.com · its alternatives →
- 11
100 Days of Code▲306Make coding a habit. Join the growing community.
2018 · 100daysofcode.com · its alternatives →
- 12ES
an exploration in reading and understanding code
2021 · artifacts.bypaulshen.com · its alternatives →
- 13
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Take a tour of your next favorite programming language
2014 · learnxinyminutes.com · its alternatives →
- 15
Javascript snippets that can make your coding life easier
2023 · 1amitarora.gumroad.com · its alternatives →
- 16
Hey HN! We're Charles and Dean, and we're building Stage: a code review tool that guides you through reading a PR step by step, instead of piecing together a giant diff. Here's a demo video: https://www.tella.tv/video/stage-demo-1pph. You can play around with some example PRs here: https://stagereview.app/explore. Teams are moving faster than ever with AI these days, but more and more engineers are merging changes that they don't really understand. The bottleneck isn't writing code anymore, it's reviewing it. We're two engineers who got frustrated with…
Apr 2026 · stagereview.app · its alternatives →
- 17
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Code Time▲135VS Code extension for automatic programming metrics
2019 · antenna.dev · its alternatives →
- 19
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CSS snippets that you can understand in 30 seconds or less.
2018 · atomiks.github.io · its alternatives →
- 21
Enlight Cohorts▲126Learn web development in two weeks by building projects
2020 · enlight.nyc · its alternatives →
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Curated collection of useful JavaScript snippets
2018 · github.com · its alternatives →
- 24
A VS Code extension to track your 100 Days of Code progress.
2020 · antenna.dev · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →